Arc Halbach Array Neodymium Magnets

Arc Halbach Array Neodymium Magnets.jpg

Arc Halbach Array Neodymium Magnets 

A Halbach Array is a special configuration of magnets to maximise the magnetic field on one side whilst reducing it on the other.

In the ring form presented here, the magnetic lines are focussed inside the ring.

Halbach arrays are the cutting edge of new design in relation to generators, motors, magnetic bearings and many more applications.

These magnets are supplied in sets of 10 magnets and are NOT assembled in the ring arrangement for you.

You will need to assemble the magnets in the desired locations as described by the diagram below.

I recommend you will have a sufficient workshop and engineering knowledge to setup the ring arrangement.

The magnets are very powerful and you cant simply place them together with your hands, you WILL NEED specific tools to hold in place and secure these magnets.

Halbach Magnet’s main function is holding, fixturing, linear coupling application, so it is mainly used for motor, generator, magnetic resonance, magnetic levitation high-speed rail,pre-polarization, chemical single crystal growth. For example, the traditional permanent magnet motor often use distributed winding to weaken the influence of harmonic magneto motive force. In the Halbach motor because of its high magnetic field sine distribution, harmonic magnetic field less affected, it can be used centralized winding. With Halbach motor magnet arrangement, can reduce the torque ripple of the motor, so the bearing requirements for the motor greatly reduced.

A Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side. This is achieved by having a spatially rotating pattern of magnetisation.

The rotating pattern of permanent magnets (on the front face; on the left, up, right, down) can be continued indefinitely and have the same effect. The effect of this arrangement is roughly similar to many horseshoe magnets placed adjacent to each other, with similar poles touching.

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